Method of producing beveled blades



y 1, 1933. w. H. BAILEY 1,917,353

METHOD OF PRODUCING BEVELED BLADES Filed July 15, 1930 FIG. 15.

A TTORNEYS.

Patented July 11, 1933 UNITED STATES nausea PATEN'r WILLIAM H. BAILEY,OF PUEBLO, COLORADO, ASSIGNOR TO THE COLORADO FUEL AND IRON OGMPANY, or

DENVER, COLORADO METHOD OF PRODUCING BEVELED BLADES Application filed.July 15,

My invention relates to a -method of pro ducing blades. The principalobject is to provide a beveled edge on stock produced by rolling.

An object of the invention is to produce in order that it may be rolledand not warp or twist out of shape during cooling.

Still another object is to produce scraper and other blades that may bemade out of rolled stock by a single operation.

Further objects reside in providing methods of producing from rolledstock blades having beveled ends and irregular beveled edges.

A still further object resides in simultaneously making two beveled-edgeblades by a single operation.

While the present invention is especially adapted to producebeveled-edge blades for road graders, it is to be understood that thisinvention is adaptablefor makingother finishedproducts from rolledstock.

Changes may be made in the embodiments of the invention, hereinafterdescribed, without departing from the spirit and scope of the invention.Like reference characters designate similar parts in the several views.

Figure 1 is a diagrammatic plan view of a machine adapted to produce abeveled edge blade.

Figure 2 is a broken, side elevation of a blade produced on saidmachine.

Figure 3 is an end elevation looking in the direction of the arrow A ofFigure 2.

Figure l is a diagrammatic,end elevation of another machine forproducing a beveled edge blade.

Figure 5 is a broken elevation of stock to be sawed on the machineillustrated in Figure 4:.

5 stock having an even distribution of metal,-

1930. Serial No. 468,118.

Figure 6 is an end elevation looking in the direction of the arrow B ofFigure 5.

Figure 7 is an end elevation of a modifica- I tion of same.

Figure 8 is a brokenside elevation of a blade made from the stock shownin Figures 5, 6 and 7. I

Figure 9 is an end elevation taken in the direction of the arrow C ofFigure 8. I

Figures 10 and 11 are diagrammatic .plan views of machines adapted forproducing blades according to the present invention.

Figures 12 and 13 are broken side elevations of blades produced on themachines shown in Figures 10 and 11 respectively. 7

Figures 14 and 15 are end elevations look ing in the direction of thearrows D and g E' of Figures 12and 13-respectively.

Referring more in detail to the drawing,

the reference numeral 16 indicates a frame of a machine adapted for usein thepresent invention. A motor 17 is mounted on the frame and carriesa circular, friction saw 18. The motor is mounted on a movable carriage19, connected to be advanced by a hand wheel 20.

A rotary chuck is indicated generally by the reference number 21. It isadapted to hold the stockwhile the saw is advanced to ward and throughsame.

Stock 22 is rolled steel with beveled edges 23, best shown in Figure 3.The material 22 is placed in the chuck 21 and the motorcarriage isadvanced toward the chuck, whereby the saw cuts the material diagonallyand bevels the out at the same time, as shown at 24,300 produce a graderblade extension or outboard blade.

The blade shown in Figures 8 and 9 can not be, rolled due to the unevendistribution of metal. Two methods are illustrated for producing such ablade. Figure a. shows a machine for the purpose. A support 25. is shownfor a motor 26. A. friction saw 27 is rotated by the motor. A movablecarriage 28 carries a chuck indicated generally by the referencecharacter 29. The carriage is opin opposite directions at either side ofa longitudinal axis, such as shown in Figures 5 and 6 is placed in thechuck and the carriage advanced toward the saw. he material is cut at anangle, as shown at 32, to produce two blades 33 and 3 Where desired, thestock may be rolled with beveled edges, as shown at 52 in Figure '4'. Inthis form, the material is sawed at right angles, as shown at 35.Figures 8 and 9 illustrate the finished product irrespective of whethermaterial like that shown in Figure 6 or that in Figure 7 is sawed.

In Figure 10, a table 36 supports a motor 3'7 and a swivel chuck 38. Asteel friction disc 39 is mounted on the motor shaft &0. A handle 41controls the chuck and a hand wheel 42 is employed to advance the chucktoward the rotating disk 39. This machine produces a beveled end 43,shown in Fig ure 12.

Figure 11 illustrates a machine adapted to produce an irregular bevelededge. A motor 45 is mounted on a table ist A sliding chuck d6 comprisesa master cam or templet 17 having an irregular edge 48 disposed tofollow a guide roller 49. The chuck carries'the stock 50 forward withintermittent lateral movements, as the roller a9 engages the recessesand projections on the master cam. A friction disc 51 cuts the edge ofthe material in conformity with the master'cam. Figures 13 and 15 showthefinished product of this machine. i V p Further details of themachines are thought immaterial, since the machines per se form no, partof the presentinvention and may be of conventional design.

In carrying my method into practice, it willbe apparent that in severalof the forms, the beveled edge of the scraper blade isproduced in thepresence of heat, induced by friction of the friction saw.

In all of the forms shown, the rolled stock or section is placed in thechuck and either the saw is moved towards the material or vice versa. Ineither event, there is a constant relation between the movement of theone relative to the other. In the form shown in Figures 4 to 7, twobeveled edge scraper blades are made by a single operation. The beveleded es may either be formed by a diagonal cut through the material, asshown in Figure 6, or they may be formed in rolling and the two bevelededged blades severed by a straight cut through the material, as shown inFigure 7.

In the form shown in Figure 10, the swivel chuck is controlled by thehandle 41 and advanced towards the saw by means of the hand wheel 42. Inthe form shown in Figure 11, the sliding chuck follows the contour ofthe irregular master cam, whereby the material is cut in conformity withthe face of the cam. lVhat I claim and desire to secure'by Let tersPatent is: p

,1. The method of producing beveled edge blades comprising rolling stockwith an even distribution of metal at either side of a longitudinalaxis, and then frictionally sawing the stock along the-longitudinal axisat an angle, otherthan a right angle, to a face of the stock, to providea beveled edge. i

2. The method of producing beveled edge blades comprising rolling stockwith a curve at either side of a longitudinal axis, and frictionallysawing thestock along said axis at an angle, other than aright a-ngle,toa face of the stock.

3. The method of producing an outboard blade or the like, comprisingrolling curved, beveled-edged stock with an even distribution of metalat either side of a longitudinal axis, and then frictionally sawing thestock at an angle to said axis and at otherthan right angles to thefaces of the stock, whereby to produce a diagonal, beveled edge apartfrom the rolled beveled edges.

i. The method of producing an outboard blade or the like,comprising'rolling stock with an even distribution ofmetal at eitherside of a longitudinal axis, and then cutting the stock by a singlecutting operation at an angle to said axis and at other than rightanglesto the faces of the stock, whereby to produce a diagonal, beveled edge.

5. The method of producing beveled edge scraper blades and the like,comprising cutting a previously rolled metal strip in a plane oblique.to opposite sides of the same, whereby to seperate the strip into twoparts, at least one of which has a transversely beveled cutting edge, ina single operation.

6. The method of producing beveled edge scraper blades and the like,comprising cutting-a previously rolled, curved strip in a plane obliqueto the curved surfaces of the strip, whereby to separate the strip intotwo parts, at least one of which has a transversely beveled cuttingedge, in a single operation.

' In testimony whereof I hereunto ai'iix my signature.

' WILLIAM H. BAILEY.

